Lock for take-ups for looms



Sept. 3, 1929.

A. A. GORDON 1,72 6,821

LOCK FOR TAKE-UPS FOR LOOMS Filed July 5l 1927 agir:

wir M f A 'i H :Jr/194s- Patented Sept. 3, 1929.

UNITED STATES PATENT OFFICE.

ALBERT A.. GORDON, OF TVORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, OF' WORCESTER, MASSACHUSETTS, A CORPORATION OFl MASSACHUSETTS.

Application filed July 5,

This invention relates to improvements in take-up mechanism of the type more particularly adapted for a so-called Knowles loom and it is the generalobject of the invention to provide an improved form of lock between the driving 'shaft of the Knowles head and the take-up mechanism operative to keep the driving shaft and take-up always in driving relations with each other.

The so-called Knowles head comprises a pair of oppositely rotating mutilated cylinders which are actuated by an upright shaft. There is usually a clutch and bevel gear connection between the upright shaft and the loom bottom shaft, provision being made for disconnecting the shafts at the time of a pickout.

It is an important object of my present invention to provide a lock which shall be as satisfactory and positive as the ICame construction but without adding any additional moving parts to the usual equipment of the Knowles loom and to make said lock more positive. and easier in its operation than that shown in the Ryon patent.

The previously mentioned clutch which disconnects the upright shaft from the bottom shaft is controlled by a forked lever and this is also true of the sleeve having the bevel pinions. It is an important object of my invention to provide inter-engaging integral.

parts on these control levers which shall act to hold the sleevein locked position under normal running conditions but which shall move to permit the reversal of the take-up mechanism when the upright shaft is disconnected from the bottom shaft.

With these and other objects in view which will appear as the description proceeds my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings, wherein I have shown a convenient embodiment of my invention, 1 Y

Fig. 1 is a side elevation of a portion of a loom having my invention appliedy thereto and shown in normal running position in full lines,

Fig. 2 shows a part of the structure set forth LOCK FOR TAKE-UPS FOR LOOMS.

1927. Serial No. 203,416.

Fig. 3 is an enlarged horizontal section on line 3-3 of Fig. 1, and

Fig. 4 is a detail horizontal section on line 4 4 of Fig. 2. l

- Referring to the drawings the loom side 10 is provided with a bottom shaft 11 which preferably rotates every two picks of the loom and has secured thereto a driving beveled gear 12. An upright shaft 13 suitably supported is provided at the lower end thereof with a bevel gear 14 to mesh with the bevel gear 12. A Collar 15 is secured to the shaft 13 and has passing therethrough a drivlng pin 16 which under normal conditions eX tends into a portion of the gear 14 to transmit motion from shaft 11 to upright shaft 13.

The pin 16 moves with a clutch 17 slidable on shaft 13 and having a groove 18 which receives one end of a dsengaging lever 19 pivoted at 20 to a bracket 21 secured to the loom frame. As shown in Fig. 1 the left hand end of the disengaging lever is connected to an upright link 22 which in turn is connected to a bell crank lever 23 attached to a horizontal forwardly extending rod 24C. Said rod is pivotally connected as at 25 to a hand lever 26 pivoted to the loom frame at 27. The upper end of the hand lever is weighted and said lever is adapted to move on opposite sides of a vertical line passing through the pivot 27 so that it will remain at rest either to the right as shown in full lines or to the left as shown in dotted lines in Fig. 1. This hand lever constitutes means for disconnecting the upright shaft from the bottom shaft, movement of said hand lever from the full to the dotted line position as shown in Fig. 1 moving the disengaging lever 19 to the dotted line position to raise the pin 16 out of driving connection with the bevel gear 14, thereby permitting the upright shaft to rotate independently of the bottom shaft. The matter thus far described is a part of the well known Knowles head such as is set forth in Patent No. 134,992to Knowles, the upright /shaft 13 driving the harness and box controlling mechanisms of the loom.

The take-up mechanism set forth herein is substantially the same as that shown in patent to Ryon No. 810,680 and is driven from the upright shaft 13. Only a portion of the take-up mechanism is set forth herein, namely a Worm gear 28 iollrllefd. at 29 t0 the 190mframe and having driving connection with the take-up roll not shown herein. A worm 30 secured to a substantially horizontal shaft 31 meshes with the worm gear 28 and causes rotation of the latter when the shaft 31 is turned. The rear end of said shaft 31 has securedl thereto a bevel pinion 32 which meshes with abevel gear 33 formed substantially as shown in Fig. 4 and pivoted on a iiXed stand 34.

Cooperating with the bevel gear 33 is a slide 35 keyed to and moving longitudinally on the upright shaft 13. The upper end of said. slide is provided with a bevel pinion 3 6 while the lower end is lprovided with a bevel pinion 37, said beveled .pinions 36 and 37 being equal as regards the number of teeth and both capable of meshingwith the bevel gear 33. One only of said pinions, however, can engage the bevel gear 33 at a time. The slide 35 is provided with a groove 38 which receives one end of a control lever 39 pivoted at 40 to the bracket or stand 21. Bymeans of an upright link 41 said control lever 39 is connected to a bell crank lever 42 which in turn connects by means of horizontal rod 43 with an upright reversing lever 44.` The upper end of said reversing lever carries a sliding key 45 controlled by handle 46. The sliding key 45 is a part of lthe .so-called Knowles head and may be formed as shown in Patent No. 398,328 to G. F.y Hutchins, movement of the key longitudinally effecting a reversal of the driving for the pattern chain, not shown, forming a part of the Knowles head.

By means of the connections described with respect to the reversing lever 44 and the sleeve 35 the direction in which the shaft 31 turns may be reversed. As shown in Fig. 1 the parts are in position to drive the shaft 31 so as to move the take-up roll forwardly. The matter thus far described is of common construction especially on worsted looms having a so-called positive reverse worm take-up and forms no part of my present invention.

As previously stated my invention relates to means for holding the driving connections for the take-up in locked position so that as the upright shaft 13 continues to rotate the shaft 31 will be required to movewith it.

Accordingly, incarrying out my invention,` 'I provide the disengagingle'ver 19 with an upwardly extending'arm 50 and also provide the control lever 39 with an arm, 60, said arms being` formed as shown herein and having interlocking engagement when the'parts are in the normal position shown in full lines in Fig. 1. In this position the clutch pin 16 drives the upright shaft 13 and the sleeve 3 5 is in its lowerposition which corresponds to a forward movement of the take-up. The arms and 60 are therefore vengaged when the=loomlis operating normally and `upward movement of the-sleeve 35 is positively prevented by the engagement of the-arms. Any tendency of said sleeve to rise along the shaft 13 due to the inclined faces of the bevel gear 33 and the bevel pinion 36 will therefore be prevented.

When it is desired to reverse the patte-rn mechanism of the loom in order to make a pick-out the hand lever 26 will be moved to the full line position shown in Fig. 2 the eiect of which will be to rock the disengaging lever` 19 about its center 20 to carry the arm 50 away from the arm 60. The reversing lever 44 may thereafter be pulled out to the position shown in Fig. 2 to raise the sleeve 35 until the lower bevel pinion 37 is in mesh with the bevel gear 33. When in this position said pinion and gear will cause a reverse movement of the shaft 31 so as to cause the take-up roll to move backwardly and allow the fell of the cloth to move rearwardly as the faulty picks of filling are removed. yAfter the pick-out has been completed the reversing lever will be restored to the normal position shown in Fig. 1, after which the hand lever will be pushed backwardly to the full line position in Fig. 1, the effect of which will be to establish normal locking position between the disengaging lever 19 and the controlling lever 39 through the arms 50 and 60.

From the foregoing it will be seen that I have provided a very simple lock for the takeup motion of a loom having an upright shaft employed with the so-called Knowles head, the lock comprising a pair of arms which are cast integrally with the disengaging and control levers, the interengagement of the arms preventing undesirable upward movement of the sleeve 35 and movement of the lower disengaging lever releasing the control lever for the sleeve so that the latter may be moved t0 take-up reversing position.

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the art ywithout departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a loom having a driving shaft and a driven pattern mechanism controlling shaft, take-up mechanism, a detachable clutch connection between the driving and driven shafts, a sleeve slidable on the driven shaft and having operative connection with the take-up mechanism, a control lever for the clutch connection, and a control lever for the sleeve, said levers having integral interengaging portions efective under normal conditions to lock the` lever controlling the sleeve against movement in one direction.

2. In a loom having a driving shaft and a driven pattern mechanism controlling shaft, a clutch to connect' the driving andfdriven shafts, a lever to control the clutch, take-up mechanism, a sleeve slidably mounted on the driven shaft and having operative connection With the take-up mechanism, a lever to control the position of the sleeve, and a pair of interengaging means, one rigid with each lever whereby the lever which moves the sleeve is locked against movement in one direction under normal running conditions.

3. In a loom having a driving shaft and a driven pattern mechanism controlling shaft, a clutch to connect the driving and driven shafts, a lever to control the position of the clutch, take-up mechanism, a sleeve slidably mounted on the driven shaft and having connection with the take-up mechanism, a lever to control the sleeve, and a pair of interengaging parts, one formed integrally with each lever to lock the lever for the sleeve against movement in one direction when the lever for the clutch is in normal running position.

4. In a loom having a driving shaft and a driven pattern mechanism controlling shaft, a clutch to connect the driving and driven shafts, a lever to control the position of the clutch, take-up mechanism, a sleeve slidably mounted on the driven shaft to have operative relation With the take-up in two positions, a lever to control the sleeve, and an arm formed on each of the levers, the arm on the lever for the clutch engaging the arm on the lever for the sleeve to prevent movement of the latter in one direction when the clutch is in normal running position.

5. In a loom having a driving shaft and a driven pattern mechanism controlling shaft, a clutch to connect the driving and driven shafts, a lever to control the position of the clutch, a take-up mechanism including a bevel gear, a sleeve slidably mounted on the driven shaft and having spaced beveled pinions each of which is adapted to mesh with the bevel gear one at a time depending upon the position of the sleeve, a lever to move the sleeve to change the position thereof, and

arms formed on the levers and normally in engagement with each other, one arm acting to prevent movement of the lever for the sleeve to hold the latter so that one of the bevel pinions and the bevel gear will be held locked in mesh under normal operating conditions.

6. In a loom having a driving shaft, a driven upright pattern mechanism controlling shaft, a clutch to connect said shafts and cause driving of the upright shaft from the driving shaft, a lever to control the position of the clutch and by Which the shafts may be connected or disconnected, take-up mechanism, a sleeve slidably mounted on the upright shaft and having spaced beveled pinions thereon, a bevel gear to be operatively related with the pinions one at a time and connected to the take-up mechanism, a lever to move said sleeve so that one or the other of the bevel pinions may be in mesh with the bevel gear, an arm on the last named lever, another arm extending from the lever for the clutch to engage the first-named arm and hold the sleeve and lever therefor locked With one of the bevel pinions'meshed with the driving gear.

7. In a loom having a driving shaft and driven pattern mechanism controlling shaft, take-up mechanism, a clutch to establish a. connection between the driving and driven shafts, a sleeve slidable on the driven shaft and having operative connection With the take-up mechanism, a control lever for the clutch, a second control lever for the sleeve, one of said levers having rigid therewith an arm to engage a portion of the other lever, said arm when engaging said portion of the other lever effective under normal conditions to lock the sleeve controlling lever against movement in one direction.

In testimony whereof I have hereunto affixed my signature.

ALBERT A. GORDON. 

